- the place where the final battle will be fought between the forces of good and evil (probably so called in reference to the battlefield of Megiddo. Revelation 16:16).
- the last and completely destructive battle: The arms race can lead to Armageddon.
- any great and crucial conflict.
- the final battle at the end of the world between the forces of good and evil, God against the kings of the earth (Revelation 16:16)
- a catastrophic and extremely destructive conflict, esp World War I viewed as this
